Head-to-Head: Primer CSS vs styled-jsx Analysis

@primer/css

v21.2.2(28 days ago)

This package is actively maintained.The package doesn't have any types definitionsNumber of direct dependencies: 2Monthly npm downloads

@primer/css is a collection of CSS utility classes and components developed by GitHub's design system team, Primer. It provides a set of reusable styles for common UI elements like buttons, forms, typography, and layout components. The CSS framework is lightweight and modular, allowing developers to easily customize and extend styles to fit their design needs.

Alternatives:
tailwindcss+
bootstrap+
bulma+
foundation-sites+
tachyons+
skeleton+
semantic-ui-css+
materialize-css+
spectre.css+
uikit+

Tags: cssutility-classescomponentsdesign-systemgithub

styled-jsx

v5.1.2(about 1 year ago)

This package was last published over a year ago. It may not be actively maintained.Types definitions are bundled with the npm packageNumber of direct dependencies: 1Monthly npm downloads

Styled-jsx is a library that allows you to write scoped and modular CSS directly in your JavaScript files using JSX. It provides a way to style React components with CSS-in-JS approach while keeping the styles encapsulated and scoped to the component they belong to. Styled-jsx offers support for both global and local styles, enabling you to create dynamic and responsive designs easily.

Alternatives:
emotion+
styled-components+
linaria+
goober+
stitches+
jss+
aphrodite+
styletron+
glamor+
treat+

Tags: javascriptcss-in-jsreactstylingscoped-styles

Fight!

Popularity

Both @primer/css and styled-jsx are popular npm packages in the front-end development community. However, styled-jsx has gained more popularity due to its association with Next.js, a popular React framework.

Styling Approach

@primer/css is a utility-first CSS library that provides a set of pre-defined utility classes for styling components. It follows the CSS-in-JS approach and allows you to compose styles using JavaScript. On the other hand, styled-jsx is a CSS-in-JS solution that allows you to write component-scoped styles using a CSS-like syntax directly in your React components.

Integration with React

Both packages can be used with React, but styled-jsx has a tighter integration with React and is commonly used in Next.js projects. It provides a built-in CSS-in-JS solution and supports server-side rendering (SSR) out of the box. @primer/css can also be used with React, but it requires additional setup and configuration.

Performance

In terms of performance, @primer/css is optimized for performance and generates minimal CSS output by using utility classes. It leverages the power of static extraction and deduplication. styled-jsx also performs well, but it generates scoped CSS for each component, which can result in larger CSS bundles compared to @primer/css.

Developer Experience

styled-jsx provides a simple and intuitive syntax for writing component-scoped styles directly in your React components. It offers features like automatic vendor prefixing and supports dynamic styles using template literals. @primer/css, on the other hand, provides a set of utility classes that can be applied to components, making it easy to style components without writing custom CSS. Both packages have good documentation and community support.

Customization and Extensibility

styled-jsx allows you to customize and extend its functionality by using plugins and configuration options. You can also use CSS preprocessors like Sass or Less with styled-jsx. @primer/css, being a utility-first CSS library, provides a limited set of utility classes that can be customized to some extent, but it may not offer the same level of customization and extensibility as styled-jsx.